20 Pack Borosilicate Glass Tubes, 4 Inch (10 cm) Length, 2mm Wall Thickness, Fire-Polished Ends, Heat Resistant for Crafting, DIY, and Technical Projects

Crafted from borosilicate glass, these 4-inch (10 cm) tubes combine clarity, strength, and dimensional precision for crafting and technical projects. Each tube features a 12 mm outer diameter, 7 mm inner diameter, and 2 mm wall thickness, ensuring consistent sizing for structured builds and fabrication work. Designed to tolerate elevated temperatures and routine thermal variation, the material maintains form and stability during cutting, shaping, and integration into custom assemblies. The fire-polished ends provide smooth, clean edges for improved handling and easier alignment with fittings or project components. Suitable for DIY builds, model construction, and technical fabrication, these straight glass tubes offer a reliable foundation for a wide range of project applications.

• Premium Borosilicate Glass Construction: Crafted from borosilicate glass, these clear tubes provide reliable thermal stability and structural strength. The material is designed to handle temperature changes while maintaining clarity and dimensional consistency for technical and fabrication projects
• Precision Dimensions (OD / ID / Wall Thickness): Each tube measures 4 inches (100 mm) in length with a 12 mm outer diameter (OD), 7 mm inner diameter (ID), and 2 mm wall thickness. The uniform sizing supports accurate cutting, shaping, and integration into custom builds and project assemblies
• Heat Resistant & Structurally Stable: Engineered to tolerate elevated temperatures and controlled heating processes, the borosilicate composition maintains form and integrity during fabrication work, crafting applications, and technical use
• Fire-Polished Smooth Ends: Both ends are fire-polished for smooth, burr-free edges. This refined finish enhances handling comfort and improves compatibility with connectors, fittings, and project components
• Versatile for Crafting & Technical Projects: Suitable for DIY fabrication, crafting projects, model building, and technical assemblies. The straight tubing design allows for cutting, shaping, and integration into a wide range of structured applications